Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096037 | Gearshifting or sliding sleeve for automobile transmissions and a manufacturing process | Walter Knoess | 1992-03-17 |
| 4770283 | Friction ring for clutches or brakes, and a method and device for producing the friction ring | Hermann Putz | 1988-09-13 |